1/**
2 * Copyright (c) Glow Contributors. See CONTRIBUTORS file.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "glow/Optimizer/Lower/Lower.h"
18#include "glow/Backend/Backend.h"
19#include "glow/Graph/Graph.h"
20#include "glow/Graph/Node.h"
21#include "glow/Graph/Nodes.h"
22#include "glow/Graph/TensorLayout.h"
23#include "glow/Optimizer/GraphOptimizer/FunctionPasses.h"
24#include "glow/Optimizer/GraphOptimizer/GraphOptimizer.h"
25
26#include "llvm/Support/Casting.h"
27
28#include <numeric>
29
30using namespace glow;
31using llvm::dyn_cast;
32
33void glow::lower(Function *F, CompilationContext &cctx, const Backend *B,
34 const KindSet &doNotLowerKinds) {
35 LOG_SCOPE(F->getLogContext(), "glow::lower")
36 F->setState(FunctionState::FuncLoaded);
37
38 auto &nodes = F->getNodes();
39 for (auto &N : nodes) {
40 if (B && !B->shouldLower(&N)) {
41 continue;
42 }
43 if (doNotLowerKinds.count(N.getKind())) {
44 continue;
45 }
46 lowerNode(F, &N, cctx);
47 }
48
49 for (auto it = F->getNodes().begin(), e = F->getNodes().end(); it != e;) {
50 auto cur = &*(it++);
51 if (dyn_cast<SGDNode>(cur)) {
52 F->eraseNode(cur);
53 }
54 }
55
56 // Remove nodes that were lowered.
57 runDCEPass(F, cctx);
58}
59